90574491938 has 16 divisors (see below), whose sum is σ = 155274621504. Its totient is φ = 38816623440.

The previous prime is 90574491929. The next prime is 90574491941. The reversal of 90574491938 is 83919447509.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759773 + ... + 870863.

It is an arithmetic number, because the mean of its divisors is an integer number (9704663844).

Almost surely, 2^90574491938 is an apocalyptic number.

90574491938 is a deficient number, since it is larger than the sum of its proper divisors (64700129566).

90574491938 is a wasteful number, since it uses less digits than its factorization.

90574491938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169337.

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 90574491938 in words is "ninety billion, five hundred seventy-four million, four hundred ninety-one thousand, nine hundred thirty-eight".